
TY  - JOUR
A1  - Christie, EK 
T1  - Physiological responses of semiarid grasses. III.* Growth in relation to temperature and soil water deficit
JF  - Australian Journal of Agricultural Research
JO  - Aust. J.  Agric. Res.
Y1  - 1975
VL  - 26
IS  - 3
SP  - 447
EP  - 457
KW  - 
UR  - https://doi.org/10.1071/AR9750447 
N2  - The optimum temperature for vegetative growth of mulga grass was about 25&deg;C, and for Mitchell and buffel grasses 30&deg;. Buffel grass had the highest yield at all temperatures, partly because of its higher growth rate which in turn can be ascribed to both a higher net assimilation rate and the diversion of a greater proportion of dry weight into leaf area. Seedlings with an ample supply of phosphate had higher relative growth rates than phosphorus-deficient seedlings at the commencement of the soil drying cycle, but their growth rates declined more rapidly as the soil water potential fell. This decline was associated with a reduction in the rate of phosphate absorption as well as a decrease in the tissue phosphorus concentration.  *Part II, Aust. J. Agric. Res., 26: 437 (1975). 
ER  -

